True Seeing vs Blindsight

[Legacy_Alex Warren]

               I was testing Blindshight feat (monster feat  - I Letoed it to my PC) and as far as I can tell - it worked.
My module uses HenchAI so monsters are a bit smarter and hide if they can. I didn't put any skill ranks to Spot or Listen but character with Blindsight had no problems with detecting hostile shadowdancer.

Does anyone know how exactly this feat work/have any experience with this feat? How is it different from True Seeing effect?
               
               

               
            

[Legacy_Failed.Bard]

               As far as I could tell from playing in one mod that gave quite a few creatures blindsight, the difference is that true seeing uses a LOS check, and blindsight doesn't.
 You can at least corner sneak to stay stealthed against an opponent with true seeing, the same tactic wouldn't work for me against blindsight.
               
               

               
            

[Legacy_HipMaestro]

               Have you tested it against those in Sanctuary?  TS will detect them but not allow direct targeting.  If BS works the same, then they are probably interchangeable.